Slicing-machine



W. C. KNAPP.

SLICING MACHINE.

APPLICATION FILED SEPT. 11, I919.

1,380,393. Patentedlune 7, 1921 Jay] I 3 $HEET$SHEET I.

W. C. KNAPP.

SLICING MACHINE.

APPLICATION FILED SEPT. 11, 1919.

1,880,393. atented June 7, 1921.

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Wm UJEXZIZIB D BY )[1 (/A a 4M0 ATTORNEY W. C; KNAPP.

sucme MACHINE.

APPLICATION HLED SEPT. 11, 1919. 1,380,393, PatentedJune 7, 1921.

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ATTORNEY NITED STATES PATENT- OFFICE.

WALTER CHANDLER KIN'AIP, OF ROCHESTER, NEW YORK, ASSIG-NOR TO LIBERTYBREAD SLICER HG, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

SLICING-HACHIN E.

Specification of Letters Patent.

Patented June '7, 1921.

Application and September 11, 1919. Serial No. 323,166.

Karma a citizen of the United States, resid ing at Rochester, in thecounty of Monroe,

State of New York, have invented certain.

new and useful improvements in Slicing- Machines; and I do declare thefollowing to be a full, clear, and exact description of the same,reference being bad to the decentpanying drawings, forming a part ofthis specification. a

M mac ines of the kind employed for slicing bread, biscuits and thelike. The object o my invention is to construct a machine of this kindwhich is simple in construction, easy to operate, and in which thematerial being sliced may be continually fed to the knife or cuttingblade. 7 A further object of m invention is to construct a machine ofthis kind in which the knife or cutting blade automatically feedsthematerial being sliced forwardly and ejects it from the machine.

More specifically, the object of my invention is to construct a slicingmachine of the kind indicated in which the cutting blade operates in aplane substantially parallel with the direction in which the materialbeing sliced is fed. Another object of the invention is to construct aslicing machine in which the trough or chute for the material to besliced is adjustable relatively to the knife or blade to vary the depthto which the material is cut, adjustable means being also provided forvarying the thickness of the slice. To these and other ends, myinvention resides in certain improvements, combinations and arrangementsof parts all as hereinafter more fully described and particularlypointed out in theappended Y trough or g ideway 18 normallyrests on theFig. 4 is a horizontal section on the line o t of Fig. 3. v I

Fig. 5 is a vertical section on the line 5"-5" of Fig. 3.

Fig. 6 is a view of the chute and knife similar to Fig. 5 showing thechute adjusted present invention relates to slicing:

. top;

to only partly cut through the material be ing sl1ced, and

Figs. 7 and 8 are detail sectional views ShQWIDg; the means foradjusting the material bemg sliced relatively'to the knife.

The slicing machine illustrated and which embodies one form of myinvention comprises a base member or support, 1, of cylin: drical formbut having a plane or fiat side 2 to which a motor 3 is secured by boltsor other suitable means. The motor is inclosed 1n the base land the side2 may be provided with an opening 4 through which the motor may beobserved if desired. While I have illustratedan electric motor, it willbe understood that any suitable motor may be employed since theparticular form of motor used forms no part of the present invention.The motor is mounted with the axis of its shaft 5, extending in asubstantially vertical direction and has connected or coupled thereto atits upper end a knife shaft 6 having a bearing in an opening 7 in asupport 8 extendin across the top of the base 1. A collar9 ormed on thebearing member rests on the upper surface of the support 8 and serves asathrust bearing for the knife shaft. Secured to the shaft 6 near itsupper end is a knife or cutting blade 10 fixedly secured to the shaft torotate therewith by the lock nuts 11 and 12 and the enlarged part 13 .oftheshaft. Secured toor formed intebaseand extension 15 to which it isadjust'ably secured. The chute is substantially rectangplar in form,open at its ends and be top being normally closed by means of a cover orlid 19, hinged or otherwise suitably pivoted at one edge to the innerwall of the trough. The inner wall 20 of the chute or. trough isslotted, as at 21, and the blade or knife 10 projects through the slotinto the chute as clearly shown in Figs. 5 and 6. The outer wall 22 ofthe chute opposite the slot 21 may also be slotted to provide a suitableclearance for the knife when it extends entirely through the chute asshown in Fig. 5. I prefer to guard the knife when thus extending throughthe wall 22 by means of a housing 23 secured to or formed integral withthe wall 22. Near its forward end the chute is provided with an car 24by means of which thechute ispivotally secured to the ear 17 By swingingthe chute on its pivot the distance to which the knife 10 projects intothe chute may be varied or it may be moved to the position shown in Fig.5, in which the knife projects entirely through both walls of thechute.-

In order to secure the chute in adjusted position a bolt is providedwhich extends through the slot 16 and a perforated ear 25 on the chuteand receives at its upper end a butterfly nut 26, by means of which thechute may be securely clamped in adjusted position to the extension 15.This feature of my invention enables me to slice biscuits 0r rollsentirely through or only partly through. With the chute adjusted as inFig. 5 a loaf of bread may be sliced lengthwise. It will thus be seenthat I have provided a slicing machine especially adapted for slicingrolls or bread for making sandwiches for which purpose rolls arefrequently only partially cut through, or a loaf of bread when out inlong slices, can be cut crosswise into slices of suitable sizes forsandwiches.

In order to vary the thickness of the slices, I providethe chute with anadjustable bottom on whi the material being sliced is supported duringthe slicing operation.

This bottom or support for the material comprises a rectangular plate 29riveted or otherwise suitably secured to a pair of blocks '30-extendingtransversely across the bottom of the plate and provided with screwthreaded extensions 31 at their ends which projectthrough elongatedslots 32 in ,the side walls of the chute. At their outer ends,

the extensions 31 are provided with butter-,

fly'nuts 33 bywhich the blocks 30 and the support29secured thereto maybe secured in adjusted position. By adjusting the sup-v port. 29 towardthe knife, the thickness of the slice may be gradually diminished whileby adjusting. it' in the opposite direction,

the thickness ,of the slice is increased. Attention is'called to thefact that the position of the support 29 is not quite parallel with theplane of the knife but inclines slightly downwardly to prevent. thematerial being sliced from-clogging or binding between it and the knife.

In practice, the bread, rolls or other mafeed the material forwardly. Ifdesired, a.

guard or cover 34 may be secured to the top of the base to inclose theknife.

Having described my invention, what I claim and desire to secure byLetters Patent is:

1. In a slicing machine, the combination of a support, a knife revolublymounted therein, a chute having a slotted wall mounted on said "supportand adjustable to and from the knife, and means for securing the chutein adjusted positions.

2. In a slicing machine, the combination of a support, a knife revolublymounted therein, a chute on said support having slotted walls throughwhich the knife is adapted to project to engage the material in thechute, said chute being adjustable to and from the knife, and means forsecuring the chute in adjusted positions.

3. In a slicing machine, the combination of a support, a knife revolublymounted therein, a chute mounted on said support and havingsubstantially parallel walls through which the knife is adapted toproject to engage the material therein, said chute being adjustable froma position in which the knife projects through both walls to a positionin which the knife projects through one wall only, and means for guarding the knife when projected through both walls of the chute.

4. In a slicing machine, the combination of a support, a knife revolublymounted therein, a chute pivoted to said support and adjustable to andfrom the knife and having the chute in adjusted positions.

5. In a sllcing machine, the combination of a support, a knife revolublymounted therein, an extension on said support, a chute having slottedwalls pivoted to said support and movable on said extension, and meansfor securing said chute to said extension.

6. In a slicing machine, the combination of a support, a knife revolublymounted therein, a chute adjustable on said support, said chutecomprising a pair of substantially parallel side walls provided withelongated slots adapted to cooperate with the knife, and a support forthe material being sliced adjustable to vary the thickness of the slice.

WALTER CHANDLER KNAPP.

